Ungewöhnliche Additions- und Cycloadditionsreaktionen von 2-Amino-3-cyanopyrrolen mit Acetylencarbonsäure-estern
- 1 January 1988
- journal article
- research article
- Published by Georg Thieme Verlag KG in Synthesis
- Vol. 1988 (08) , 632-635
- https://doi.org/10.1055/s-1988-27661
Abstract
Unusual Addition and Cycloaddition Reactions of 2-Amino-3-cyanopyrroles with Dimethyl Acetylenedicarboxylate and Methyl Propynoate Amino group activated 4,5-dimethylpyrroles react with acetylenecarboxylate derivatives in a hitherto unknown manner. The formation of the 5-indolone derivatives 6a, b, c, e, g, h as main products depends on the solvent medium. The 1:2 addition product 3a shows an unusual reactivity yielding the isoindole derivative 4a and the isoquinoline derivative 5a.Keywords
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